From Greek: para allelois beside one another. Lines are parallel if they lie in the same plane, and are the same distance apart over their entire length. Try this Drag any orange dot at the points P or Q. As the line PQ moves, the line RS will remain parallel to it. Parallel lines remain the same distance apart over their entire length.
It is important to know whether the cancer has got into the lymph glands because they are one of the main mechanisms by which the cancer can spread to other parts of the body. As long as the spread is just to the lymph glands near to the colon then this would indicate Stage 3 cancer.
Hodgkin's lymphoma (HL) and non-Hodgkin's lymphoma (NHL) are both blood cancers that develop in the lymphatic system. These cancers occur when lymphocytes-types of white blood cells in the immune system that help protect us from infection and diseaseâstart to grow abnormally and develop into lymphomas.